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(No Model.)

J. BAIRSTOW 8v T. E. KEAVY.

BUTTON SETTING INSTRUMENT. No. 386,832. Patented. Feb. 23, 1886.

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Unites STATES ATEN'I Orricn.

JOHN BAIRSTOVV AND THOMAS E. KEAVY, OF KENT, OHIO; SAID BAIRSTOVV ASSIGNOR, BY MESNE ASSIGNMENTS, TO AUGUSTINE A. TILLITSON, OF

AKRON, OHIO.

BUTTON-SETTING INSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 336,832, dated February 23, 1886.

Application filed April 23, 1885. Serial No. 163,230. (No model.)

v the material to which the button is to be attached and turned through the eye of the button.

The object of our invention is twofoldviz., to wrap or turn the fastener into a complete loop about the button-eye, and to reduce the size of the loop so as to bring the button closely against the material.

Our invention consists in the devices illustrated in the accompanying drawings, as hereinafter described, and specifically pointed out in the claims.

In said drawings, Figure 1 is a side elevation of an instrument to which our improvements are applied. Fig. 2 is a front elevation of the button holding and upsetting de- Vice. Fig. 3 is a view of the under part of the device shown in Fig. 2 looking upward. Fig. 4 is a vertical central section of Fig. and Fig. 5, a vertical central section at right angles to Fig. 4, or from front to rear.

The entire machine embodies a fastenerholder, A, and a button holding and upsetting device, B; but as the latter is the only subject of this application the shape and construction of the former are of no significance. The two parts may be attached to the jaws of a handtool, as shown in Fig. 1, or any other arrangement may be adopted, the essential features being that the fastener be held in the holder A, and by it pressed into the button holding and upsetting device B. The cylindrical head B has a longitudinal central bore to receive the stem of the anvil-block, which bore is enlarged in the upper half of the head to contain the coiled spring 0 and plunger 0. One side of the lower end of the head B is cut away for about one-third its length, leaving a plane face extending from front to back and constituting a recess or seat for theanvilblock. The anvil-block D fits in this recess, and has a plane face, which rests against the plane face of the recess, and is provided with a stem,d, screw-threaded at its upper end, which slides in the bore in the head, screws into the plunger 0, and is held up by the spring 0. In the front of the block. D is a recess, in which the button rests, and in the inner plane face is a segmental channel, E, hereinafter more fully described. In the center of this annular channel, and substantially at a rightangle with the face of the block, is a core, e, which consists of a steel rod or pin securely fastened in the block, and with a deep longitudinal groove in its upper front side. Opposite this groove is a narrow transverse notch or slot in the face of the block D, connecting the segmental channel with the button-recess in the front of the block, through which the button-eye shank can be thrust and rest in the groove in the core 6. Directly beneath the core is a semicircular notch, i, in the face of the block, extending from the segmental channel to the lower end, through which the fastener enters. In operation, a button-eye shank is force through the transverse notch until it rests in the groove in the core 6, the shank and core constituting a mandrel about which to turn the fastener. A spring, F, attached to the head B, holds the button in place when the eye is inserted in the slot. The fastener is then forced upward through the material and the notch i into the segmental channel E, by which, as it is pushed inward, it is turned about through the eye of the button and forms a complete ring or circle. This action is secured by inclining the inner face of the segmental channel laterally, so that it shall gradually become deeper, until opposite the point where the fastener enters it is wide enough to permit the fastener to lap. The button is removed by giving to the material to which it has been fastened a slight pull or jerk, which draws the blockD below the head B, and permits the eye to slip out of the slot and the turned fastener off from the core 0.

The fastener-holder A consists of a post secured to one of .the jaws of the instrument, and a sleeve mounted and sliding on the post strument are brought together the fastener is forced through the material into the loop of the button and clamped around the same by the upsetting mechanism. At the same time the sliding sleeve will be pushed down and the clamping-jaws forced apart to release the fastener.

We do not wish to be restricted to any particular construction of fastener-holder. as our invention relates solely to the upsetting device.

e claim as our invention-- 1. In a button-fastening implement for oneprong fasteners, the block which rests against a fixed surface provided with a segmental channel, with a notch for the entrance of the fastener, the depth of which said channel increases from said notch until it is substantially doubled, a slot for the insertion of the buttoneye, and a corein the center ofsaid segmental channel with a longitudinal channel opposite said slot, substantially as and for the purpose described.

2. The herein-described upsetting device for one prong button-fasteners, consisting of the block D, having the stem d, and provided with the segmental channel E, with a slot opening therein, the channeled core e, and notch i, in combination with the head B, cap 0, coiled spring 0, spring F, and a suitable fastenerholder device, substantially as described.

In testimony that we claim the foregoing we have hereunto set our hands this 20th day of March, A. D. 1885.

JOHN BAIRSTOW. THOMAS E. KEAVY.

Witnesses:

M. G. GARRISON, A. D. CLARKE. 

